Sorry for the late response, it was already late in my country when i started this post. I also want to apologize for the confusion i may have created, my question was about てみたい and たい but i thought we all were on the same page back then and only wrote てみる, im sorry.
Having read all the responses I now understand what the てみたい might be used for. I was just confused because i didnt understand why would someone ask using てみたい rather than たい (if you have never been to japan, as in the example, it seemed better to use たい as it shows you really want to go rather than trying to go) However, Toritoribe´s last response was quite illustrative and it seems that it may even be better to use てみたい in those cases.